Home / 26,979.80-40,493.70-15,872.60

Finding the Fourth Proportional to 26,979.80, 40,493.70 and 15,872.60

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Solution

The fourth proportional to 26,979.80, 40,493.70 and 15,872.60 is: 23,823.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,979.80 : 40,493.70 = 15,872.60 : x
  2. Step 2: Convert to fraction form
    26,979.80/40,493.70 = 15,872.60/x
  3. Step 3: Cross multiply
    26,979.80x = 40,493.70 × 15,872.60
  4. Step 4: Simplify right side
    26,979.80x = 642,740,302.62
  5. Step 5: Solve for x
    x = 642,740,302.62/26,979.80
  6. Step 6: Final answer
    x = 23,823.02

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.